Check Think Cell License Key Install ((install)) — How To
(If installed for a single user, look under %LOCALAPPDATA%\Programs\think-cell )
A known conflict exists between think‑cell and the PowerPoint add‑in. When both are installed, trying to close the think‑cell license key window with OK might cause PowerPoint to crash, often with an error message like “APIERR 1400 Invalid window handle”.
A dialog box will appear showing the currently active license key (partially masked for security) and the expiration date 2. Verify via System Settings (Advanced)
: Settings are typically stored in the Microsoft Office property list ( com.microsoft.office ) or within the ~/Library/Application Support/think-cell 3. Expiration Notifications how to check think cell license key install
If the think-cell group does not appear in the PowerPoint ribbon, it may be disabled. In PowerPoint, go to File > Options > Add-ins . Check the Disabled Items dropdown at the bottom to see if think-cell needs to be re-enabled.
Think-cell licenses are typically valid for a specific leasing period (often 1 year). When a lease expires, the software switches to a read-only mode until a new key is provided.
C:\Program Files\think-cell>tcli.exe --license-info License: valid Type: Perpetual Licensed to: ABC Corp License key: 12345-*****-*****-67890 Expiration: never (If installed for a single user, look under
Your license might have expired. Check for expiration warnings as mentioned in Part 1. 3. Registry Checks (Advanced Users)
To help me tailor any further technical steps, could you tell me: Are you running this check on or macOS ?
If the add-in is missing entirely or you need to check if the license key was successfully written to your profile, you can check the local settings file. Verify via System Settings (Advanced) : Settings are
Click the button (represented by a gear or dropdown arrow depending on your version). Click About from the dropdown menu. Reading the License Information
The license information is typically stored in the com.microsoft.office property list, often prefixed with com.think-cell.settings.licensekey . 4. Troubleshooting a "Missing" License
What (Windows or macOS) are you currently using?
Look for "think-cell" in the list of . 3. Check Local License Key Files (Advanced)